Cell Rep:一个前列腺癌风险元件具有抑制回路的功能,并调控HOXA13

2017-11-21 AlexYang MedSci原创

前列腺癌(PCa)在美国是一种主导性的癌症,并且遗传因素在PCa敏感的患者中贡献率达到了大约42%。最近,有研究人员分析了一个位于7p15.2的PCa风险区域,从而尝试获得该非编码区域是通过怎样的机制来对基因进行调控的以及是怎样来形成前列腺癌风险的。研究人员进行了Hi-C分析并且阐释了该区域具有很长范围的与HOXA位点互作的区域,大约相距873kb。利用CRISPR/Cas9系统,研究人员敲除了一

前列腺癌(PCa)在美国是一种主导性的癌症,并且遗传因素在PCa敏感的患者中贡献率达到了大约42%。最近,有研究人员分析了一个位于7p15.2的PCa风险区域,从而尝试获得该非编码区域是通过怎样的机制来对基因进行调控的以及是怎样来形成前列腺癌风险的。

研究人员进行了Hi-C分析并且阐释了该区域具有很长范围的与HOXA位点互作的区域,大约相距873kb。利用CRISPR/Cas9系统,研究人员敲除了一个4kb的区域包括了一些PCa风险相关的SNPs,并且进行了RNA-seq来调查在前列腺细胞中缺乏该调控元件情况下的转录组变化。

研究结果表明,该风险元件通过一个抑制回路,能够影响HOXA13和HOTTIP的表达,但是在HOXA位点的其他基因并不受影响。研究人员还对HOXA13进行了过表达,从而进一步的探究该风险元件是通过什么机制产生PCa风险。

原始出处:

Luo Z, Rhie SK, Lay FD et al. A Prostate Cancer Risk Element Functions as a Repressive Loop that Regulates HOXA13. Cell Rep. 7 Nov 2017.

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    2018-06-16 维他命
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    2017-12-11 sjq027
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    2017-11-21 有备才能无患

    前列腺癌(PCa)在美国是一种主导性的癌症.并且遗传因素在PCa敏感的患者中贡献率达到了大约42%.最近.有研究人员分析了一个位于7p15.2的PCa风险区域.从而尝试获得该非编码区域是通过怎样的机制来对基因进行调控的以及是怎样来形成前列腺癌风险的.

    0

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